# TPS71401DCKR

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SC-70-5

TPS71401DCKR from Texas Instruments, in a SC-70-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | FB | input | In the adjustable configuration, this pin sets the output voltage with the help of the external feedback divider (adjustable output range 1.205 V to 8.8 V). |
| 2 | GND | power_in | Ground pin. |
| 3 | NC | unconnected | No connect pin; it is not connected internally, so connect it to ground for best thermal performance or leave it floating. |
| 4 | IN | power_in | Input supply pin; use a capacitor of 0.1 µF or larger from this pin to ground (input supply range 2.5 V to 10 V). |
| 5 | OUT | power_out | Regulator output; for the new chip a capacitor of 1 µF or larger is required from this pin to ground, and the nominal output capacitance must be greater than 0.47 µF after 50% derating. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SC-70-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `TPS71401DCKR`
- Footprint: `Package_TO_SOT_SMD:SOT-353_SC-70-5`
- 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files: `tps71401dckr-etched.step` / `tps71401dckr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps71401dckr.step` / `tps71401dckr.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps714) (39 pp, sha256 `3794ea8f66f454a2`, retrieved 2026-10-08, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/tps71401dckr-datasheet.pdf)